<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录界面</title>
</head>
<body>
<h2>Please Login</h2>
<form action="/login" method="post">
    <ul>
        <li>username:</li>
        <li><input type="text" name="username"></li>
        <li>password:</li>
        <li><input type="password" name="password"></li>
        <li><input type="submit" value="登录"></li>
    </ul>
</form>
</body>
</html>